大家好本人初学者，关于二叉树的有些问题总是出错，帮忙修改下谢谢

问题描述：

#define STACK_INIT_SIZE 10
#define INCREMENT_SIZE 10
#include
#include
#include
#include
#include

#define TRUE 1
#define FALSE 0
#define OK 1
#define ERROR -1
#define OVERFLOW -2
typedef int status;
typedef char telemtype;

typedef struct bitnode
{
telemtype data;
struct bitnode *lchild, *rchild;
} bitnode ,*bitree;

status createbitree(bitree *t)
{
char ch;
scanf("%c",&ch);
if(ch='#')t=NULL;
else
{
if(!(t=(bitree *)malloc(sizeof(bitree))))exit(OVERFLOW);
(*t)->data=ch;
creatbitree((*t)->lchild);
creatbitree((*t)->rchild);
}
return OK;
}

status printelement(telemtype e)
{
printf("%c",e);
return OK;
}

status preordertraverse(bitree t,status(* visit)(telemtype e))
{
if (t)
{
if(visit(t->data))
if(preordertraverse(t->lchild,visit))
if(preordertraverse(t->rchild,visit)) return OK;
return ERROR;

    }
else return OK;

}

status zhongxu(bitree t,status(* visit)(telemtype e))
{
if (t)
{
if(zhongxu(t->lchild,visit))
if(visit(t->data))
if(zhongxu(t->rchild,visit)) return OK;
return ERROR;

    }
else return OK;

}
int main(int argc, char *argv[])
{
int bitnode;
bitree t;
t=NULL;
createbitree(&t);
printf("\n");
preordertraverse(&t,printelement);
zhongxu(&t,printelement);
return 0;
}

错误是
E:\数据结构\main.c In function 'main':
77 19 E:\数据结构\main.c [Warning] passing argument 1 of 'preordertraverse' from incompatible pointer type
45 8 E:\数据结构\main.c [Note] expected 'bitree' but argument is of type 'struct bitnode **'
78 10 E:\数据结构\main.c [Warning] passing argument 1 of 'zhongxu' from incompatible pointer type
58 8 E:\数据结构\main.c [Note] expected 'bitree' but argument is of type 'struct bitnode **'

能帮忙修改下让它运行正常吗、？
不知道为什么被禁言了能否私信我谢谢真的很急。。

答

#include
#include
#define STACK_INIT_SIZE 10
#define INCREMENT_SIZE 10
#define TRUE 1
#define FALSE 0
#define OK 1
#define ERROR -1
#define OVERFLOW -2
typedef int status;
typedef char telemtype;
typedef struct bitnode
{
telemtype data;
struct bitnode *lchild, *rchild;
}bitnode,*bitree;
status creatbitree(bitree *t)
{
char ch;
scanf("%c",&ch);
getchar(); //如果你的输入是回车则需要一个etchar吃掉回车
if(ch=='#') //这的判断是双等号
*t=NULL;
else{

    if(!(*t=(bitree)malloc(sizeof(bitnode))))
        exit(OVERFLOW);
    (*t)->data=ch;
    creatbitree(&(*t)->lchild);
    creatbitree(&(*t)->rchild);
}
return OK;

}
status printelement(telemtype e)
{
printf("%c",e);
return OK;
}
status preordertraverse(bitree t,status( visit)(telemtype e))
{
if(t){
if(visit(t->data))
if(preordertraverse(t->lchild,visit))
if(preordertraverse(t->rchild,visit))
return OK;
return ERROR;
}else
return OK;
}
status zhongxu(bitree t,status( visit)(telemtype e))
{
if (t){
if(zhongxu(t->lchild,visit))
if(visit(t->data))
if(zhongxu(t->rchild,visit))
return OK;
return ERROR;
}else
return OK;
}
int main(int argc, char argv[])
{
int bitnode;
bitree t;
t=NULL;
creatbitree(&t);
printf("\n");
preordertraverse(t,printelement);
printf("\n");
zhongxu(t,printelement);
return 0;
}

刷分刷分

答

struct bitnode *lchild, *rchild;
不是bitree类型，然而你preordertraverse第一个参数要bitree

大家好本人初学者，关于二叉树的有些问题总是出错，帮忙修改下 谢谢

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大家好本人初学者，关于二叉树的有些问题总是出错，帮忙修改下谢谢